1.25 The following data set is related to that in Exer- cise 1.24. It gives the percent of the families that are in the upper income level at the same individual schools in the same order as in Exercise 1.24. 72.2 31.9 26.5 29.1 27.3 8.6 22.3 26.5 20.4 12.8 25.1 19.2 24.1 58.2 68.1 89.2 55.1 9.4 14.5 13.9 20.7 17.9 8.5 55.4 38.1 54.2 21.5 26.2 59.1 43.3 (a) Calculate the sample mean. (b) Calculate the sample median. (c) Construct a relative frequency histogram of the data. (d) Compute the 10% trimmed mean. Compare with the results in (a) and (b) and comment.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
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Author:Carter
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Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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1.25

1.25 The following data set is related to that in Exer-
cise 1.24. It gives the percent of the families that are in
the upper income level at the same individual schools
in the same order as in Exercise 1.24.
72.2 31.9 26.5 29.1 27.3 8.6 22.3 26.5
20.4 12.8 25.1 19.2 24.1 58.2 68.1 89.2
55.1
9.4 14.5 13.9 20.7 17.9 8.5 55.4
38.1 54.2 21.5 26.2 59.1 43.3
(a) Calculate the sample mean.
(b) Calculate the sample median.
(c) Construct a relative frequency histogram of the
data.
(d) Compute the 10% trimmed mean. Compare with
the results in (a) and (b) and comment.
Transcribed Image Text:1.25 The following data set is related to that in Exer- cise 1.24. It gives the percent of the families that are in the upper income level at the same individual schools in the same order as in Exercise 1.24. 72.2 31.9 26.5 29.1 27.3 8.6 22.3 26.5 20.4 12.8 25.1 19.2 24.1 58.2 68.1 89.2 55.1 9.4 14.5 13.9 20.7 17.9 8.5 55.4 38.1 54.2 21.5 26.2 59.1 43.3 (a) Calculate the sample mean. (b) Calculate the sample median. (c) Construct a relative frequency histogram of the data. (d) Compute the 10% trimmed mean. Compare with the results in (a) and (b) and comment.
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